Spade-wheel plow



(No Model.) v

H. SKILLINGS.

SPADE WHEEL PLOW.

No. 307,809. Patented Nov. 11, 1884.

W www" I INVBNTOR N. PETERS. PnnxcrLizhogmpher. wnshi nnnnnnnnn a raresSPADE-WHEEL. PLOW.

GP'ELIFICATION forming part of Letters Patent No. 307,809,dated'November l1, 1884.

Application led March 3, 1884.

To all whom, t may concern.-

Be it known that I. HIRAM SKILLINGS, of Minneapolis, in the county ofHennepin and State of Minnesota, have invented a new and usefulImprovement in Spade-Wheel Plows, of which the following is a full,clear, and exact description, reference being had to the annexeddrawings, forming part of this specification.

This invention embodies certain improvements on the spade-wheel plowshown in my PatentNo. 271, 142,dated January 23, 1883; and it consistsof the construction and arrangement of parts, hereinafter described andclaimed.

In the drawings, Figure l is a top plan view of my improved spade-wheelplow. Fig. 2 is a side view of one of the spade-wheels partly brokenaway. Fig. 3 is a detail View of one of the spadewheel supports partlyin section;

and Fig. 4. is a detailview of the seat-supporting frame and mechanismfor elevating the spade-wheels. Fig. 5 is a detail view.

In my above-named patent I have shown a spade-wheel formed of two-disksand a series of curved spades having T-shaped Shanks, which are embeddedin recesses in the faces of the disks, and clamped vbetween the latterby means of bolts passing through the disks between the spades. Aseriesof such wheels are arranged on separate axles obliquely to the line ofdraft-,with the convex side of one wheel arranged opposite to theconcave side of another, so that one will throw the soil it turns overinto the furrow formed by another.

In my presentinvention I have modified the construction of thespade-wheel with aview to reduction of expense in manufacturing the sameand convenience in putting in and removing the spades. To thisY end oneof the disks, as a, is formed with a plane surface, b, on one side, andthe other disk, a', which is placed on the surface b, is formed withradial slots b in its periphery for receiving the shanks of the curvedspades c. The shanks of the spades are made straight instead ofT-shaped, so that they may be inserted into the slots b endwisc. On theopposite side of the disk a from the disk a-that is, on the concave sideof the wheel-is arranged a dat ring or annular plate, d, which coversthe recesses or slots b and the shanks of the spades. These parts beingarranged together as described are se- (No model.)

cured together by means of bolts c', passing through the disk a, theShanks of the spades, and the annular plate. The advantage of thisconstruction is that only one of the disks requires to be recessed toreceive the spades, and any spade may be removed and replaced by simplytaking out the bolt by which it is secured, and without loosening orremoving any other part of the wheel. ranged on the convex instead ofthe concave side of the wheel, because the strain on the spades requiresa stronger support at that side, the annular plate d being sufficient tosupport them on the concave side of the wheel. spade-wheels A being thusconstructed are to be ilexibly connected to a wheeled frame, B, insteadof constituting a vehicle in themselves, as shown in my aforesaidpatent.

The disk ais ar- 6o The The stationary axle C of the wheeled frame 7o isprovided with bearings c at the rear for a removable rod, e', on whichthe arms or supports D ofthe spade-wheels are hung or hinged. rIhesebearings may be so arranged that a separate rod, e', may be used foreach spade-wheel 7 5 or pair of spade-\vl1cels, so that said spadewheelor pair of spade-wheels may be removed without disturbing the otherspade-wheels of the series. The rear ends of the arms D are providedwith axles e2, arranged obliquely to 8o the line of draft, forsupporting the spadewheels. In order that the Obliquity of the axles maybe adjusted to any desired degree, the axles are connected to the larmsD by means ofI a plate, f, forming a socket, f with the arm,

which socket is made flaring at its farthest end from the wheel, andprovided with two oppo-- sitely-arranged set-screws, g, passing throughthe said plate and adapted to bear against opposite sides of theaxle-shank. struction, by a proper adjustment of the screws g ythe shankof the axle in the larger end of the ilaring socket will be movedforward or backward, causing a corresponding deilection of the outer endof the axle.

E indicates the seat-supporting frame formed of two rectangularly-bentstandards, h 7L,which are provided with openings by which they are to bepassed over the ends of the axle C. These standards are connectedtogether at their upico per ends above the center of the wheeled frame,and are supported by a brace, i, bolted to the Vith this con- 9o l aresecured vertical plates 7c 7c, supporting are adapted to lift the arms Dto elevate the standards, and to the tongue i of the frame B. The seat7' is supported ou this brace.

To the standards h, at the sides of frame E,

sheaves Z l, over which pass chains m m, connected to the rear ends ofarms D at one of their ends, and to levers n n at their other end, whichlevers are pivoted to said plates, and

spade-Wheels,and the plates are provided with retaining-racks o o forholding the said levers in any desired position for supporting thespadewheels above ground.

To the upper surface of each arm D is secured a scraper, p, which servesas a shield tov prevent soil from dropping from the spades of the Wheelupon the axle of said Wheel. The

scraper extends rearward and fits closely enough in the concavity of thespades to prevent soil from adhering in quantity between the spades.

l. The spade-Wheel consisting of the disk a',

having radial slots b in its periphery, the curved spades c, havingstraight Shanks set in said slots, and being all curved to one and thesaine side, the annular plate d, covering said slots on the concave sideof the Wheel, the disk a, covering said slots on the convex side of theWheel to support the strain on the spades, and

